Yuri, who is 13 years old. Start studying at highschool.Trying to live a better life.Music is her other half soul.But not until she meet her crush.Donghae,he is handsome,cold hearted and sweet talker.She hated the way she always fell for cold hearted boy,ever since middle school.maybe it is one of her ideal type?but who the hell like cold hearted boy?then it is no other than yuri.